Loudspeaker



FIG. 1 is a perspective view of a loudspeaker of the present design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view thereof.

The broken line showing on the drawing disclosure is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a loudspeaker, as shown and described. 